ATSF F7s

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atsf sp
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ATSF F7s

Post by atsf sp » Tue Dec 02, 2008 10:54 pm

Does anyone know when Santa Fe stopped using F7s for passenger trains and when they stopped using them for freight even if it was just branch lines. When were they rebuilt into CF7s?
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westr
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Re: ATSF F7s

Post by westr » Fri Dec 05, 2008 10:41 pm

I think the F7s were used in passenger service up until Amtrak, and Amtrak leased some of them in its early days. The F-units were rebuilt to CF7s from 1970 to 1978. I think the end of the rebuild program was about the end of the unrebuilt Fs in freight service as well.

For more info, here's a website with a detailed ATSF roster, and here's a good page about CF7s.

atsf sp
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Re: ATSF F7s

Post by atsf sp » Sat Dec 06, 2008 8:37 pm

Well I was just wondering if it was possible to see a SD45 built in the late 60s and F7s running. Thanks
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Tadman
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Re: ATSF F7s

Post by Tadman » Sun Dec 07, 2008 4:14 pm

I know the FP45's and F7's were assigned to passenger trains from 1968 to 1971 (A-day). I don't think I've seen mixed sets. Both were in warbonnet, though. It seems ATSF was pretty strict about matching power - PA, F7, U28C, U30CG, and FP45 in solid sets. Amtrak bought/borrowed F7's but not FP54. MILW used their FP45's in mixed sets with F's and E's on passenger trains. The only roads to use the SD45 in passenger service was GN and SP, with SDP45's. EL had them too, but only for extra fuel capacity on freights. GN kept fairly solid sets, while SP would run whatever wherever.
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westr
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Re: ATSF F7s

Post by westr » Sun Dec 07, 2008 10:39 pm

They were certainly in service at the same time, so if you just want to have them on your layout at the same time that's no problem. As for having them running together, its possible but probably wasn't common. Santa Fe tended to keep the Fs in sets until near the end, but you could get away with it. Both warbonnet passenger Fs and blue & yellow freight Fs were used in freight service toward the end. The freight Fs would be more likely to run with SD45s but either could've possibly happened. The SD45 would be best in the early blue/yellow scheme as the blue/yellow warbonnet didn't appear until '73 and they probably weren't repainted quickly. It would've been theoretically possible for an F7 to run with a freight warbonnet SD45, but not as likely.

A picture at http://atsf.railfan.net/cowls/f45.html shows a warbonnet F7b trailing 2 blue & yellow F45s, providing steam for heat on an Amtrak train, though the F45s had steam lines & high speed gearing to run with the FP45s on passenger trains if necessary; SD45s didn't. Also, on the Santa Fe, only F7Bs has steam generators, so Fs on passenger trains had to be in at least A-B sets.

GN's SDP45s (and SDP40s) were used with other power. See http://www.rrpicturearchives.net/showPi ... ?id=818239

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